Add explicit MainActor to UIViewDSL

Add explicit @mainactor to UIViewDSL, though it seems unnecessary since the protocol’s Self constraint on UIView is already @MainActor-protected by UIView

Author: Adobels

Sources/UIViewKit/UIViewDSL/UIViewDSL.swift

@@ -7,6 +7,7 @@
 
 import UIKit
 
+@MainActor
 public protocol UIViewDSL where Self: UIView { }
 
 extension UIView: UIViewDSL { }